If both a trackpad and a trackpoint are available, I always use the trackpoint. I feel like I have better control with it while the trakpad makes me sloppy.
Know why that is? Because their pads are goddamn terrible. Every time I see a mac vs. pc argument it gets down to the mac user saying 'it's because of the trackpad' and the pc user saying 'I don't need no trackpad'. well.. there might be a reason for that you know.